Am I over worrying?

This is quite long sorry in advance…

So we just found out like last week that I’m pregnant. I’m in Mexico at the moment and got an ultrasound I’m 5weeks going on 6. So I’m a bit scared because I’ve had 3 miscarriages. 2 before my first born. I have 3 kids now. And just 2 years ago I had my 3rd miscarriage at 5 weeks. Well I’m not considered high risk but doctors do tend to see me a lot at the beginning to make sure everything is looking good. So the thing is I tend not to have any sex till after 12-13 weeks. But my hormones this pregnancy are crazy lol. And me and my husband just had sex. But now I’m like ugh why did I do that. Should I stop overthinking? Also my right side has been hurting for 2 days now it always does I guess where baby is growing and uterus is stretching. And that’s what makes me more scared. I get quite paranoid.