I NEED SOME ADVICE? Opinion?? Please

So I took a test last night and it came out faint positive like as soon as the urine went across the control line it popped up. I took another one maybe 30 min later that night and it showed up faint faint more faint then the first one I took. Well I took one this morning and negative.... like I am so confused and today I am suppose to get my period but no show. I took the strip test. Has this happen to anyone and still ended up pregnant?