Pregnancy Chart

Daily Count- down to Due Date	Daily Count Forward to Due Date	Pregnancy Week	Weeks after Conception	Pregnancy Month	Lunar Month	Trimester
280-274	1-7	0	period	1st Month (Month 0)	Month 1	FIRST TRIMESTER
273-267	8-14	1
266-260	15-21	2	ovulation
259-253	22-28	3	conception
252-246	29-35	4	1		Month 2
245-238	36-42	5	2	2nd Month (Month 1)
237-232	43-49	6	3
231-225	50-56	7	4
224-218	57-63	8	5		Month 3
217-211	64-70	9	6	3rd Month (Month 2)
210-204	71-77	10	7
203-197	78-84	11	8
196-190	85-91	12	9		Month 4
189-183	92-98	13	10	4th Month (Month 3)
182-176	99-105	14	11			SECOND TRIMESTER
175-169	106-112	15	12
168-162	113-119	16	13		Month 5
161-155	120-126	17	14	5th Month (Month 4)
154-148	127-133	18	15
147-141	134-140	19	16
140-134	141-147	20	17		Month 6
133-127	148-154	21	18	6th Month (Month 5)
126-120	155-161	22	19
119-113	162-168	23	20
112-106	169-175	24	21		Month 7
105-99	176-182	25	22	7th Month (Month 6)
98-92	183-189	26	23
91-85	190-196	27	24
84-78	197-203	28	25		Month 8	THIRD TRIMESTER
77-71	204-210	29	26	8th Month (Month 7)
70-64	211-217	30	27
63-57	218-224	31	28
56-50	225-231	32	29		Month 9
49-43	232-237	33	30	9th Month (Month 8)
42-36	238-245	34	31
35-29	246-252	35	32
28-22	253-259	36	33		Month 10
21-15	260-266	37	34	10th Month (Month 9)
14-8	267-273	38	35
7-1	274-280	39	36
DUE DATE		40	37

original link : http://www.babyzone.com/pregnancy/pregnancychart.asp