Ive taken 2 hpt before my cycle was due saw very faint positive. When can I test again to see if I am with my first pregnancy that I lost back in May it took my body 3 missed cycle to get a positive. But by that time it was too late my baby had grown in my left tube and had to be removed...... But now after 2 full cycle no AF this month 5 days late when should I retest..... Been feeling heavy in my lower stomach and have lower back pains every now and then throughout the day for 3 days now. Been getting tired really fast.. .