Miscarriage or messed up birth control?

[Viola]

Hi everyone,

So I’ve had to switch to a new birth control for finance reasons and have been experiencing some issues. A few weeks into switching, I started to put on weight visibly, my boobs became sore (I could barely lift them into my bra), I got headaches, I was getting nauseous again (I have had problems with this before so I didn’t think twice) and my back was killing me! In this time I did have unprotected sex on this new pill because I was told I could trust it. Because I hadn’t got my period yet and it wasn’t due I wasn’t worried and started putting these weird things down to my pill. Then I was 5 days late for my period and started panicking (I’m only 18 and pregnancy right now is my worst nightmare). I was scared until 5 days late I got my period. Except it was tiny brown spotting. I thought oh chill it’s just old blood. But then the day after I was hit with such intense cramping pain and that I physically threw up. I checked my pad and it was covered (I know this is gross but like I mean leaking out the sides) and it had clots all over it. I sat down and cried until the pain went away about 5 mins later, cleaned myself up and then went about my day. After my period completely lightening up and I’ve not had heavy problems anymore. My boobs stopped hurting but I have gone down with the most awful flu like thing.
After reading a bit online I’m struggling to decide whether this was because my birth control doesn’t agree with me or I got pregnant and (considering I’m 18 I drink and smoke) caused a miscarriage.
Can someone help me please?
Thanks,
V x

 

[Akua]

All of these things could be attributed to your hormones being out of sync with normal because of the new pill. I’d try not to worry

 

[WinterWolf]

There's no way to know I'm afraid! I'd agree with Akua, the pill has probably caused all of this.

 

[HaylzDz]

Even if it was a miscarriage it’s highly unlikely that you caused it so please don’t have that in your head. It’s very common for an egg to become fertilised but just not ‘stick’ and a week or two later it is expelled in what seems like a late heavy period, its often known as a chemical pregnancy. It’s thought up to one in four fertilised eggs will never end up turning in to a viable pregnancy but the hormones of pregnancy are still triggered by fertiisation.
Saying that, it’s unusual to have strong pregnancy symptoms so early on so I would assume it’s down to a rollercoaster of hormones since changing birth control.
Try not to worry and if it happens at your next period go see your doctor. I’m sure when you’re ready to have a baby you won’t have any issues like this x