hello...
thanks for trusting the healthcare magic doctors for ur health related queries.
i guess ur concern is about causes of delay in menses despite of upt is negative...right.
firstly I want to tell u that..RELAX..NOTHING GOES WRONG. sometimes it happens without any causes.but u didn't tell me that it's a first time that ur period is delayed or it happens in past for many times.so it's difficult for me to comment on this.
irregular menses are very common in reproductive age group(it is from 15-45 years). as u told that u r 28 year old. so DON'T WORRY.
secondly let us discuss about ur symptoms(
fatigue,
nausea,
tingling in nipples, headache and mucus like discharge). this type of symptoms also occurs before menses has come, it is called Pre-menstrual syndrome (PMS). some women have this. but NOTHING TO WORRY...RELAX, EVERY PROBLEM HAVE SOLUTION.
with above discussion u can try out my suggestions-
1. if u r still worried about that u have
pregnancy then repeat the upt again. if it is negative then nothing to worry,wait for the mense to come. if it not come then visit to nearby gynecologist.he/she can help u.if it is positive then ur gynecologist also helps you in that situation also.
2. the symptoms told by u can relieved with the medications. in this case ur treating gynecologist also helps you.
I hope the above information is useful, informative and helpful for u.
regards- Dr sudha rani panagar
( i can understand ur tense-full situation, don't worry..KEEP PATIENCE. u will be alright)